Molar Mass of FeCl2 (Ferrous Chloride)
Molar Mass Calculator
What is the molar mass of FeCl2?
Answer
M(FeCl2) ≈
126.75 g/mol
Atomic weights: IUPAC standard values (CIAAW, 2024); the sum is rounded to the decimal places of the least precise one — Cl: 35.45.
| Element | Atoms, n | Atomic weight, A | n × A, g/mol Mass fraction, w | |
|---|---|---|---|---|
| Feiron | 1 | 55.845 | 55.845 w ≈ 44.06% | ≈ 44.06% |
| Clchlorine | 2 | 35.45 | 70.90 w ≈ 55.94% | ≈ 55.94% |
| Σ = 126.745 ≈ 126.75 g/mol w = 100% | 100% | |||
Atomic weights: CIAAW, Abridged Standard Atomic Weights (2024)
Cl 55.94%Fe 44.06%
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Molar masses of substances nearby
| Formula | M, g/mol |
|---|---|
| Na₂SO₃ (sodium sulfite) | 126.04 |
| C₂H₆O₆ | 126.064 |
| C₅H₆N₂O₂ (thymine) | 126.115 |
| FeCl₂ (ferrous chloride) | 126.75 |
| AgF (silver fluoride) | 126.87 |
| I (iodine) | 126.90 |
| Te (tellurium) | 127.60 |